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The Goodman 0128F00006 Chimney Transition Bottom is a genuine OEM flue-vent component for Goodman and Amana ADVC80603BXBA gas furnaces. This transition piece connects the furnace draft hood / inducer outlet to the vent pipe, channeling combustion byproducts safely into the chimney or vent system. A corroded or misfit transition can leak flue gases and disrupt proper draft, so a factory-correct replacement is important for safe venting.
The OEM Goodman transition is stamped to the exact flange dimensions and outlet diameter of the ADVC vent system, ensuring a tight, leak-free connection. Generic fabricated transitions may not seal correctly at the furnace collar, risking flue-gas spillage. For a venting component that handles combustion products, OEM is strongly recommended.
Moderate. Requires disconnecting the vent connector, removing the old transition, and resealing the new one with the proper fasteners and high-temp sealant. Plan 30–45 minutes. Always shut off power and gas, and verify proper draft after reassembly.
Fits Goodman and Amana ADVC80603BXBA furnaces. Verify your model and vent configuration before ordering.